Antenna



FIG. 1 is a top plan view of an antenna with broken lines showing a cover.

FIG. 2 is a side plan view of the antenna of FIG. 1.

FIG. 3 is a top perspective view of the antenna of FIG. 1.

FIG. 4 is a bottom plan view of the antenna of FIG. 1.

FIG. 5 is a side view of the antenna of FIG. 1; and,

FIG. 6 is a bottom perspective view of the antenna of FIG. 1.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

CLAIM The ornamental design for an antenna, as shown and described. 